Clamp type ultrasonic flowmeter measuring structure and flowmeter measurer

Abstract

The utility model relates to a measuring structure of a clamp type ultrasonic flowmeter, which is used for measuring the flow of a pipe body and comprises two sensors, the two sensors are arranged in a protective shell through a mounting plate, the protective shell is fixedly connected with a clamp, the clamp is provided with a groove matched with the pipe body to be measured, and the two sensors are arranged in the protective shell through the mounting plate. The two clamps are matched with each other to wrap and clamp a pipe body to be detected; the two mounting plates are both provided with protruding parts making contact with a to-be-detected pipe body. The pipe body to be detected is wrapped and clamped through mutual cooperation of the two clamps, clutters occurring in the detection process are reduced, detection signals and the overall anti-interference capability in the detection process are enhanced, the accuracy of detection data is improved, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model provides a flow meter measuring device, and more specifically, the utility model also relates to a clamp-type ultrasonic flow meter measuring structure and a flow meter measuring device. Background Art

[0002] Clamp-on ultrasonic flowmeters require no pipe cutting. Unlike traditional ultrasonic flowmeters, users simply clip the clamp onto the pipe surface. No additional probes are required. Once the main unit is installed and powered on, it ultrasonically detects flow and automatically calculates flow rate and totalizer flow.

[0003] Measurable media: drinking water, river water, sea water, groundwater, cooling water, high-temperature water, sewage, lubricating oil, diesel, fuel, chemical liquids and other homogeneous fluids.

[0004] However, the existing clamp-type ultrasonic flowmeter has too many external interference factors during the measurement process, resulting in weak detection signals, clutter and low anti-interference ability during the detection process, resulting in inaccurate detection data and low detection efficiency. Utility Model Content

[0005] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: a clamp-type ultrasonic flowmeter measurement structure for measuring the flow of a pipe body, including: two sensors, both sensors are arranged in a protective shell through a mounting plate, and the protective shells are fixedly connected with clamps, and the clamps are provided with grooves that match the pipe body to be measured, and the two clamps cooperate with each other to wrap and clamp the pipe body to be measured; both mounting plates are provided with protrusions that contact the pipe body to be measured.

[0006] Preferably, the sensors are all provided with a piezoelectric sheet, and the piezoelectric sheet is fixed on the mounting plate by a pressing member, and a buffer pad is provided between the pressing member and the piezoelectric sheet.

[0007] Preferably, the clamp is provided with a tube wall sealing ring between the raised portion and the tube body to be tested. When the two clamps wrap and clamp the tube body to be tested, the tube body sealing ring deforms to seal the raised portion.

[0008] Preferably, clamping rubber rings are provided at both ends of the groove. When the two clamps wrap and clamp the tube to be tested, the clamping rubber rings drive the clamps to cooperate with the tube to be in a stationary state.

[0009] Preferably, the clamp is fixedly connected to multiple groups of limit components arranged axially along the tube body, each group of limit components consists of two limit rubber rings, the two limit rubber rings are respectively arranged on both sides of the tube body to be tested, and the tube body to be tested is clamped by deformation of the two limit rubber rings.

[0010] Preferably, the mounting plate is structurally recessed in the protective shell, so that a gap is left between the mounting plate and the clamp when the clamp is fixed to the protective shell.

[0011] Preferably, a circuit board connected to the piezoelectric piece is fixedly connected to each of the two protective shells, and a signal line is fixedly connected to the two circuit boards, and the signal line extends to the outside of the protective shell;

[0012] One of the protective shells is fixedly connected to an indicator light, which extends into the protective shell and is connected to the circuit board.

[0013] Preferably, the connection between the signal line and the protective shell is sealed by an O-ring.

[0014] Preferably, a flow meter measuring device uses the measurement structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The two clamps cooperate with each other to wrap and clamp the pipe to be tested, reducing the noise during the detection process, enhancing the detection signal and overall anti-interference ability during the detection process, improving the accuracy of the detection data, and improving the detection efficiency.

[0017] 2. Install an elastic buffer pad on the piezoelectric piece to improve the propagation efficiency of ultrasonic waves to the contact surface of the sensor mounting plate.

[0018] 3. The pipe wall sealing ring deforms to both sides during installation to seal the raised part, reducing the amount of ultrasonic waves passing through the air during propagation and improving the accuracy of the test data.

[0019] 4. The clamping rubber ring ensures that the sensor will not slip on the pipeline due to external forces after installation, thereby enhancing anti-interference performance.

[0020] 5. Two limit rubber rings are used to ensure the straightness of the measured part during the measurement of plastic pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the measuring structure of the clamp-type ultrasonic flowmeter of the utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of the measuring structure of the clamp-type ultrasonic flowmeter of the utility model;

[0023] Figure 3 This is an enlarged diagram of the measuring structure A of the clamp-type ultrasonic flowmeter of the utility model;

[0024] Figure 4 This is an enlarged diagram of the measuring structure B of the clamp-type ultrasonic flowmeter of the utility model;

[0025] Figure 5 This is a partial structural exploded diagram of the measuring structure of the clamp-type ultrasonic flowmeter of the utility model;

[0026] Figure 6 This is a diagram showing the matching state of the measuring structure and pipe body of the clamp-type ultrasonic flowmeter of the present invention.

[0027] In the figure: 1. Sensor; 101. Piezoelectric piece; 102. Buffer pad; 103. Circuit board; 104. Signal line; 105. Indicator light; 106. Pressing piece; 2. Mounting plate; 201. Raised part; 3. Protective shell; 4. Clamp; 5. Pipe wall sealing ring; 6. Clamping rubber ring; 7. Limiting rubber ring; 8. Pipe body; 9. O-ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiment of the present invention to clearly and completely describe the technical solutions in the embodiment of the present invention. Obviously, the described embodiment is only a sample of the present invention.

[0029] All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative work fall within the scope of protection of the present invention.

[0030] Figure 1 As Figure 3 As shown, the utility model provides a technical solution: a clamp-type ultrasonic flowmeter measurement structure for measuring the flow of a pipe body 8, comprising: two sensors 1, both of which are arranged in a protective shell 3 through a mounting plate 2.

[0031] The sensor 1 includes a piezoelectric sheet 101 , which is fixed on the mounting plate 2 via a pressing member 106 , and a buffer pad 102 is provided between the pressing member 106 and the piezoelectric sheet 101 .

[0032] Detail A: An elastic buffer pad 102 is installed on the piezoelectric sheet 101 to improve the propagation efficiency of ultrasonic waves to the contact surface of the sensor 1 mounting plate 2.

[0033] Each sensor 1 also includes: a circuit board 103 fixedly arranged in the protective shell 3, the circuit board 103 is electrically connected to the piezoelectric piece 101, and the circuit board 103 is fixedly connected to a signal line 104, the signal line 104 extends to the outside of the protective shell 3, and the connection between the signal line 104 and the protective shell 3 is sealed by an O-ring 9.

[0034] The O-ring 9 can fit tightly between the signal line 104 and the protective shell 3 , effectively preventing external impurities such as dust and water vapor from entering, and providing strong guarantee for the long-term stable operation of the circuit board 103 .

[0035] One of the protective shells 3 is fixedly connected to an indicator light 105, which extends into the protective shell 3 and is connected to the circuit board 103. The indicator light 105 is used to cooperate with the circuit board 103 to display a specific detection status.

[0036] The protective shell 3 is fixedly connected to the clamp 4, and the protective shell 3 and the clamp 4 are locked by driving the clamp 4 through two screws.

[0037] like Figure 5 As shown, the mounting plate 2 is structurally recessed in the protective shell 3. When the clamp 4 is fixed to the protective shell 3, a gap is left between the mounting plate 2 and the clamp 4. The purpose is to ensure that there is a certain gap between the sensor 1 and the clamp 4 to prevent the ultrasonic wave from being transmitted to the clamp 4, thereby improving the propagation efficiency of the ultrasonic wave of the sensor 1, reducing clutter, resisting interference, and increasing signal strength.

[0038] like Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the clamps 4 are each provided with a groove that matches the tube body 8 to be tested, and the two clamps 4 cooperate with each other to wrap and clamp the tube body 8 to be tested, and the two mounting plates 2 are each provided with a protrusion 201 that contacts the tube body 8 to be tested.

[0039] The clamp 4 is provided with a pipe wall sealing ring 5 between the raised portion 201 and the pipe body 8 to be tested. When the two clamps 4 wrap and clamp the pipe body 8 to be tested, the sealing ring of the pipe body 8 deforms to seal the raised portion 201 .

[0040] Detail B: The pipe wall sealing ring 5 deforms toward both sides during installation to seal the raised portion 201, reducing the amount of ultrasonic waves passing through the air during propagation and improving the accuracy of the detection data.

[0041] like Figure 5 、 Figure 6 As shown, a clamping rubber ring 6 is provided at both ends of the groove. When the two clamps 4 wrap around and clamp the tube 8 to be tested, the clamping rubber ring 6 drives the clamps 4 and the tube 8 to be in a static state when they cooperate. The clamping rubber ring 6 also plays a sealing role, sealing the groove and improving the overall detection effect.

[0042] The clamp 4 is fixedly connected to multiple sets of limiter assemblies arranged axially along the tube 8. Each set of limiter assemblies consists of two limiter rubber rings 7, which are located on either side of the tube 8 to be measured. The two limiter rubber rings 7 deform to clamp the tube 8 to be measured. Generally, two sets of limiter rubber rings 7 are used, upper and lower, to ensure the straightness of the measured part during the measurement of plastic pipes.

[0043] In this embodiment, a flow meter measuring device may be provided, which uses the above-mentioned measurement structure.

[0044] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A clamp-type ultrasonic flowmeter measuring structure for measuring pipe flow, characterized in that: include: Two sensors, both sensors are arranged in a protective shell through a mounting plate, and the protective shell is fixedly connected with a clamp, and the clamp is provided with a groove that matches the tube body to be tested. The two clamps cooperate with each other to wrap and clamp the tube body to be tested; both mounting plates are provided with a protrusion that contacts the tube body to be tested.

2. The clamp-type ultrasonic flowmeter measurement structure according to claim 1, characterized in that: The sensors are all provided with a piezoelectric sheet, and the piezoelectric sheet is fixed on the mounting plate by a pressing member, and a buffer pad is provided between the pressing member and the piezoelectric sheet.

3. The clamp-type ultrasonic flowmeter measurement structure according to claim 1, characterized in that: The clamp is provided with a tube wall sealing ring between the raised portion and the tube body to be tested. When the two clamps wrap and clamp the tube body to be tested, the tube body sealing ring deforms to seal the raised portion.

4. The clamp-type ultrasonic flowmeter measurement structure according to claim 1, characterized in that: Both ends of the groove are provided with clamping rubber rings. When the two clamps wrap and clamp the pipe to be tested, the clamping rubber rings drive the clamps and the pipe to cooperate and are in a stationary state.

5. The clamp-type ultrasonic flowmeter measurement structure according to claim 1, characterized in that: The clamp is fixedly connected to multiple groups of limit components arranged along the axial direction of the tube body, each group of limit components is composed of two limit rubber rings, which are respectively arranged on both sides of the tube body to be tested, and the tube body to be tested is clamped by the deformation of the two limit rubber rings.

6. The clamp-type ultrasonic flowmeter measurement structure according to claim 1, characterized in that: The mounting plate is structurally recessed in the protective shell, and when the clamp is fixed to the protective shell, a gap is left between the mounting plate and the clamp.

7. The clamp-type ultrasonic flowmeter measurement structure according to claim 1, characterized in that: A circuit board connected to the piezoelectric piece is fixedly connected to each of the two protective shells. A signal line is fixedly connected to the two circuit boards, and the signal line extends to the outside of the protective shells. One of the protective shells is fixedly connected to an indicator light, which extends into the protective shell and is connected to the circuit board.

8. The clamp-type ultrasonic flowmeter measurement structure according to claim 7, characterized in that: The connection between the signal line and the protective shell is sealed by an O-ring.

9. A flow meter measuring device, characterized in that: The flow meter measuring device uses the measurement structure according to any one of claims 1 to 8.

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